Apparatus and method for reproducing high fidelity sound

(19)

(11)

EP 0 353 092 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	02.01.1991 Bulletin 1991/01

(43)	Date of publication A2:
	31.01.1990 Bulletin 1990/05

(21)	Application number: 89307705.7

(22)	Date of filing: 28.07.1989

(51)	International Patent Classification (IPC)⁵: H04R 1/30

(84)	Designated Contracting States:
	DE GB IT NL

(30)

Priority:

28.07.1988 US 225171

(71)	Applicant: Fabri-Conti, Lucas
	F-75014 Paris (FR)

(72)	Inventor:
	Fabri-Conti, Lucas F-75014 Paris (FR)

(74)	Representative: Chettle, Adrian John et al
	Withers & Rogers 4, Dyer's Buildings Holborn London EC1N 2JT London EC1N 2JT (GB)

(56)

References cited: :

(54)	Apparatus and method for reproducing high fidelity sound

(57) A horn-equipped loudspeaker is provided which has an electro-acoustic transducer to convert electrical signals into acoustical signals, a coil (1) with input terminals (2,3) for receiving the electrical signals and at least one movable diaphragm (20) for the emission of acoustical signals. The loudspeaker also includes a horn (22) with walls arranged facing each other. The separation between the horn walls progressively increases from a small input area (23), or throat, to a large output region (24), or mouth. The loudspeaker diaphragm (20) is formed of a portion of one of the walls of the input area of the horn.

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